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Extraterrestrial life
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Modern fascination with extra-terrestrial life
Modern fascination with extra-terrestrial life
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Augusta1
4/2/09
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Ancient fascination with extraterrestrial life has continued well into the 20th century. Until the scientific advances of the later 20th century, scientists and the public were convinced that aliens were real.
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jharrington
4/2/09
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In 2000, Peter Ward and Donald Brownlee advanced the Rare Earth theory, suggesting that complex life such as exists on Earth is rare but microbial life is common.
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Papillon
5/30/09
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I've always thought that was the reality. Not so much that life would be rare, but more that higher forms of life would be very uncommon if they existed at all.
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